She plays an annoying, tenacious, opinionated geek who has a penchant for pleated skirts, buttoned-up blouses and knee-high socks.
So it's little wonder actress Lea Michele couldn't wait to shed her prim and proper on-screen persona and slip into something a lot sexier.
Lea, 23, who plays songstress Rachel Berry in the popular comedy series Glee, looked gorgeous and glamorous in a floor-length silk maxi-dress as she arrived at a party for the show in Los Angeles last night.
She joined her co-stars at the bash at the Bar Marmont in West Hollywood for the Glee Spring Premiere Party to celebrate the return of the smash-hit show to our screens.
And the cast lived up to the show's name as they partied at the bar inside the exclusive Chateau Marmont Hotel.
They and other specially-invited guests were also given a first look at the new episode on a big screen outside the venue.
Lea was joined by co-stars and fellow glee club members Amber Riley, who plays 'diva in training' Mercedes Jones, 24, who constantly battles with Rachel for the lead vocal.
Also there was Dianna Agron, 23, who plays pregnant ex-cheerleader Quinn Fabray, and Cory Monteith, 27, who stars as Finn Hudson, the fictional William McKinley High School's star quarterback, the lead male vocalist in the glee club and initially thought to be the father of Quinn's unborn child.
Matthew Morrisson, 31, who plays Spanish teacher and glee club coach Will Schuester, was also in attendance as well as Jessalyn Gilsig, 38, who plays Will's estranged wife Terri.
The show's cheerleaders - known as the Cheerios - and glee club members Britney and Santana, played by Heather Morris, 23, and Naya Rivera, also 23, respectively, joined them on the red carpet, as well as Jenna Ushkowitz, 23, who plays Tina Cohen-Chang.
For those that haven't witnessed this latest TV phenomenon, Glee is a comedy series about a high school show choir - known as a glee club - and their daily battles as they prepare for sectionals and fight off bullies - mostly the cheerleaders and footballer players - who mock them on a daily basis, usually by throwing a large slushy drink in their faces.
The first series was split in two with 13 episodes having already been shown around the world which not only brought massive critical acclaim but a huge cult following.
The second part of series one airs in the U.S. tonight and starts back on E4 in the UK next Monday night at 9pm.
The first part ended on episode 13 and saw the glee club, who are called New Directions, win a show choir competition.
Fans of the show have been buzzing about the show's return and have been throwing parties in its honour.
Some went one step further and arranged a Glee flashmob event that took place around London yesterday.
If you think your club has what it takes, upload its best routine to www.youtube.com/gleedvduk.
A panel of expert judges including cast members from the Wicked stage production including Lee Mead will choose the winner, and the club that wins will be given a once-in-a-lifetime chance to perform in London’s West End.